AA SMog Test Only is your local one stop Smog Check & Test Only Center. We are Certified Test Only Smog Station Located in Citrus Heights, CA. If you need a Smog Check, Emissions Test, Bi-annual Smog Certification, or a smog check for a change of ownership, then visit us Today! We are ASE Master Certified Technicians, locally owned and ready to serve you. We get our checks done in 20 minutes or less.